Trolley guard for tunnels



c. T. WHALEY. TROLLEY GUARD FOR TUNNELS.

APPLICATION FILED OCT.17, |921.

Patented May 16, @29,

IDW

ARQ

TROLLEY GUARD FOR TUNNELS,

terasse.

Application iled Gotober 17, 1921.

To all whom t may concern:

Be it known that I, CYnUs T. HALEY, a citizen of the United States,residing at Norfolk, in the county of Norfolk and State of Virginia,have invented certain new and useful Improvementsl in rirolley Guardsfor rlunnels, of which the following is a specitication.

This invention relates to trolley wheel guards and has special referenceto a trolley wheel guard particularly for use in connection withtunnels, under bridges and trestles and in other like situations.

One important object of theinvention is to provide an improved, simpleand economical form of guard or guide which will ensure the movement ofa trolley in constant electrical contact throughout the length of thedevice.

A second important object of the invention is to provide an improveddevice of this character wherein the trolley will ybe in electricalcontact with the guide itself, the wire being supported on the guide soas to feed current to the latter by being arranged exterior/ly of saidguide.

`With the above and other objects in view, the invention consists .ingeneral of certain novel details of construction and combinations ofparts hereinafter fully described, illustrated in the-accompanyingdrawings, and specifically claimed.

ln the accompanying drawings, like characters of reference indicate likeparts in the several views, and

Figure 1 is a perspective View of the improved device showing a portionof the entering end thereof.

Figure 2 is a similar view showing the opposite end thereof.

Figure 3 is a tranverse section therethrough.

1` F igure '-1 is a transverse section showing a slight modification ofthe device.

In the invention as herein illustrated there is provided an invertedU-shape trough or channel forming the guide or guard and having a topwall 10 and side walls 11. At the entering end this top wall is curvedupward as shown at 12 and the side walls are flared outwardly shown at13. At the opposite or exit end the top wall projects slightly beyondthe side walls and has its corners bent down as at let. rEhe top andside walls may be either integral as shown Specification of LettersPatent.

3ra-tenten May is, rissa Serial No. 508,055.

in Figure 3 or may be made of three separate plates as shown in Figurea, being secured in each instance to an inverted U- shaped bracket 15conforming in shape to the top and side walls. Any required number ofthese brackets may be used between the two ends and each of the bracketsis provided with an outwardly and upwardly extending lug 1G at eachcorner. Each lug is provided with an eye 17 in its end for theattachment of the usual suspension wires, and one of the lugs has inaddition t0 this eye an opening 18 wherethrough leads the trolley orfeeder wire 19. This wire also passes through an opening 2O in theupturned top 12 at each end so that the b0t-` tom of the wire lies inthe same plane as the under side of this top. By means of thisconstruction if the trolley approaches the guide it will run smoothlyoff the wire onto the top of the guide and, on arriving at the otherend, the down turned corners 14 will guide the trolley back onto thewire 19. Thus the guard carrying the trolley may run through the tunnelwithout any attention being' paid to the trolley and without thenecessity of either placing the trolley within the guide on approachingthe latter or placn ing it on the wire after leaving the guide.

There has thus been provided a simple and efficient device of the kinddescribed and for the purposes specified.

Having thus described the invention, what is claimed as new, is

1. A trolley wheel guide of the class described consisting of aninverted U-shape member having a flaring inlet end. and a contractedoutlet end.

2. A trolley guide of the class described comprising an invertedU-shaped trough, bracket supporting said trough of inverted U-shape andengaging the sides and top of the trough, and lugs projecting from saidbracket and provided with terminal eyes for the reception of suspensionwires, one of said lugs on each bracket being further provided with anopening for the reception of a feeder wire.

3. A trolley guide of the class described comprising an invertedU-shaped trough, bracket supporting said trough of inverted U-shape andengaging the sides and top of the trough, and lugs projecting from saidbracket and provided with terminal eyes for the reception of suspensionwires, one of its top projecting beyond the sides and having the cornersof the top turned downwardly to guide the trolley on said Wire.

In testimony whereof I nx my sgnature.

CYRUS T. VHALE Y.

